The EX: Ruby & Sapphire set is the first of the sets based on the third generation and the first in the long-line of EX sets. This set is the first set done in-house by Nintendo. Like the previous e-Reader sets, many of the cards include Dot Code for scanning into the e-Reader.This set brought the major new feature of Pokémon ex. These Pokémon act like normal Pokémon, but tend to have high HitPoints and strong attacks. If a player defeats them, they get to take two prize cards instead of one.